DURAFRAME Self-Adhesive Magnetic Sign Holder, Letter Size, 8 1/2-inch x 11-inch (DBL487701) Sturdy DuraLens cover lifts effortlessly, allowing for speedy insert and updates Magnetic seal holds inserts securely in place Can be read from both sides when affixed to transparent surfaces, such as glass Adheres to any smooth, solid surface - simply peel, stick, done